Sterilizing air filter

ABSTRACT

A sterilizing air filter has a casing, a base, multiple spray devices, a cover, multiple fans and multiple bent tubes. The casing has an inlet and an outlet. The base is mounted in the casing and has multiple chambers in the base. Disinfectant can be poured into the chambers. The spray devices respectively mounted in the chambers and the cover fitted on the base are both used for spraying disinfectant in the chamber. The multiple fans and the multiple bent tubes are used for spreading the sprayed disinfectant between the different chambers and out to the air. The sterilizing air filter not only sucks the air into the microbial filter for sterilization and filtration but also automatically sprays the disinfectant out to the air to kill microbes in the air.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an air filter, and more particularly toan air filter for sterilizing and filtering the air.

2. Description of Related Art

Some infecting microbes, e.g. influenza virus, corona virus,parainfluenza virus, are spread into the atmosphere by sneezing andvomiting of patients. When people are in enclosed spaces, healthy peoplemay become infected through the ventilation system, such as an airconditioner unit. At this time, people must wear respirators forpreventing such infection. If any method or device can sterilize orfilter the air to eliminate the infected microbes, people may feelrelieved that they do not need to wear respirators. A conventionalmethod for sterilizing microbes is using 70% ethanol in a sprayer tosterilize the desired place, e.g. a table, hand or container. However,the sprayer must be manually operated and no automatic machine canfilter the air as well as spray disinfectant to the air.

SUMMARY OF THE INVENTION

The main objective of the present invention is to provide an automaticsterilizing air filter that can sterilize and filtrate microbes andspray disinfectant in the air.

To achieve the objective, a sterilizing air filter in accordance withthe present invention comprises a casing, a base, multiple spraydevices, a cover, multiple fans and multiple bent tubes. The casing hasan inlet and an outlet. The base is mounted in the casing and hasmultiple chambers in the base. The disinfectant can be poured into thechambers. The spray devices respectively mounted in the chambers and thecover fitted on the base are used for spraying disinfectant in the airof the chamber. The multiple fans are mounted in the cover and themultiple bent tubes are mounted with the cover and correspond to theinlet or the outlet in the casing for spreading the sprayed disinfectantbetween the different chambers and out to the air. The sterilizing airfilter not only sucks the air into the sterilizing air filter forsterilization and filtration but also automatically sprays thedisinfectant out to the air to kill microbes in the air.

Further benefits and advantages of the present invention will becomeapparent after a careful reading of the detailed description withappropriate reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a sterilizing air filter in accordancewith the present invention;

FIG. 2 is a perspective view of an internal part of the sterilizing airfilter in FIG. 1;

FIG. 3 is an exploded perspective view of the sterilizing air filter inFIG. 1

FIG. 4 is a top plane view of multiple tubes of the sterilizing airfilter in FIG. 1; and

FIG. 5 is a side plane view of the sterilizing air filter in FIG. 1.

DETAILED DESCRIPTION OF THE INVENTION

With reference to FIGS. 1 to 3, a sterilizing air filter in accordancewith the present invention comprises a casing (10), a base (20),multiple spray devices (30), a cover (40), multiple fans (50) andmultiple bending tubes (60).

The casing (10) has a top (not numbered), a bottom (not numbered), asidewall (not numbered), an optional opening (not shown), an optionalplate (16), an inlet (12) and an outlet (14). In a preferred embodiment,the inlet (12) is formed through the sidewall and the outlet (14) isformed through the top. The optional opening is formed in the sidewalland the plate (16) covers the opening.

The base (20) is mounted in the casing (10) and has multiple chambers(22) defined in the base (20). In a preferred embodiment of the presentinvention, the base (20) has two chambers (22) named first chamber (notnumbered) and second chamber (not numbered).

The multiple spray devices (30) are respectively mounted in the chambers(22) and each has an electric pump (32), a flat filter (34) and anoptional spray head (36). The electric pump (32) is mounted in thecorresponding chamber (22) and has a top (not numbered). The flat filter(34) is mounted on the top of the electric pump (32). In a preferredembodiment of the present invention, the optional spray head (36) ismounted on the flat filter (34) and connected with the top of theelectric pump (32). In a preferred embodiment of the present invention,the microbial filter has two spray devices (30) and one is mounted inthe first chamber (22) and the other is mounted in the second chamber(22).

The cover (40) is fitted on the base (20) and has a plate (42), multipleholes (44), multiple connecting tubes (45), multiple optional settingtubes (43) and multiple tubular filters (46). The plate (42) is mountedon the base (20). The holes (44) are formed in the plate (42) and eachhas a periphery (not numbered). In a preferred embodiment of the presentinvention, the cover (40) has four holes (44). Two holes (44) arecorresponded with the first chamber (22) of the base (20) and the othertwo holes (44) are corresponded with the second chamber (22) of the base(20). The multiple connecting tubes (45) are formed integrally andextend upward from the plate (42) and the periphery of the correspondinghole (44). The multiple tubular filters (46) each have a proximal end(not numbered) and a distal end (not numbered). The proximal end of thetubular filter (46) is connected around the periphery of thecorresponding hole (44). The distal end of the tubular filter (46) ismounted around the corresponding spray device (30) in the chamber (22)of the base (20). In a preferred embodiment of the present invention,the tubular filters (46) are connected with one of the two holescorresponded with the same chamber (22) of the base (20). The optionalsetting tubes (43) are formed integrally with and extend downward fromthe plate (42) and the periphery of the corresponding holes (44). Themultiple tubular filters (46) are preferably mounted around thecorresponding setting tube (43).

The multiple fans (50) are respectively mounted in the connecting tubes(45).

The multiple bent tubes (60) are mounted with the connecting tubes (45)on the plate (42) of the cover (40) and correspond to the inlet (12) inthe casing (10) or the outlet (14) in the casing (10). In a preferredembodiment of the present invention, the sterilizing air filter hasthree bent tubes (60) respectively named first bent tube (62), secondbent tube (64) and third bent tube (66). The first bent tube (62) has aproximal end (not numbered) and a distal end (not numbered). Theproximal end of the first bent tube (62) is connected with theconnecting tube (45) that has the tubular filter (46) mountedcorresponding to the first chamber (22) of the base (20). The distal endof the first bent tube (62) is mounted corresponding to the inlet (12)in the casing (10). The second bent tube (64) has a proximal end (notnumbered) and a distal end (not numbered). The proximal end of thesecond bent tube (64) is connected with the connecting tube (45) thathas no tubular filter (46) mounted corresponding to the first chamber(22). The distal end of the second bent tube (64) is connected with theconnecting tube (45) that has the tubular filter (46) mountedcorresponding to the second chamber (22). The third bent tube (66) has aproximal end (not numbered) and a distal end (not numbered). Theproximal end of the third bent tube (66) is connected with theconnecting tube (45) that has no tubular filter (46) mountedcorresponding to the second chamber (22). The distal end of the thirdbent tube (66) is mounted corresponding to the outlet (14) in the casing(10).

With further reference to FIGS. 4 to 5, the disinfectant that can bedirected against specific microbes is poured into the base (20). Thedisinfectant is pumped upward by the electric pump (32) to the top ofthe electric pump (32) and preferably sprayed from the spray head (36)to the flat filter (34). The sprayed disinfectant flows down and throughof the tubular filter (46). The fan (50) corresponded with the firstbent tube (62) lets the air flow from the inlet (12) in the casing (10)and blows the sprayed disinfectant through of the flat filter (34) andthe tubular filter (46). The fan (50) corresponded with the second benttube (64) lets the air with the sprayed disinfectant flow out to thesecond chamber (22) of the base (20). The electric pump (32) in thesecond chamber (22) also pumps the disinfectant to the flat filter (34)and the tubular filter (46). The fan (50) connected correspondingly tothe distal end of the second bent tube (64) lets the air with thesprayed disinfectant in the first chamber (22) blow the disinfectantthrough of the flat filter (34) and the tubular filter (46) in thesecond chamber (22) to spray the disinfectant. The fan (50) connectedcorresponding to the proximal end of the third bent tube (66) lets theair with the sprayed disinfectant flow out from the outlet (14) in thecasing (10).

The sterilizing air filter not only sucks the air into the microbialfilter for sterilization and filtration but also automatically spraysthe disinfectant out to the air to kill microbes in the air.

Although the invention has been explained in relation to its preferredembodiment, many other possible modifications and variations can be madewithout departing from the spirit and scope of the invention ashereinafter claimed.

1. A sterilizing air filter comprising: a casing having a top; a bottom;a sidewall; an inlet formed in the casing; and an outlet formed in thecasing; a base mounted in the casing and having multiple chambersdefined in the base; multiple spray devices respectively mounted in thechambers and each having an electric pump mounted in a correspondingchamber and having a top; and a flat filter mounted on the top of theelectric pump; a cover mounted on the base and having a plate coveringthe base; multiple holes formed in the plate and each multiple holehaving a periphery; multiple connecting tubes formed integrally andextended upward from the plate and respectively around the peripheriesof the holes; and multiple tubular filters each having a proximal endand a distal end, wherein the proximal end of each tubular filter isconnected around the periphery of a corresponding hole and the distalend of each tubular filter is mounted around one of the spray devices inthe chamber of the base; multiple fans respectively mounted in theconnecting tubes; and multiple bent tubes respectively mounted with theconnecting tubes on the plate of the cover and two of the bent tubescorresponding to the inlet in the casing and the outlet in the casing.2. The sterilizing air filter as claimed in claim 1, wherein the inletis formed through the sidewall of the casing and the outlet is formedthrough the top of the casing.
 3. The sterilizing air filter as claimedin claim 2, wherein the base has two chambers named first chamber andsecond chamber; the sterilizing air filter has two spray devices and oneis mounted in the first chamber and the other is mounted in the secondchamber; and the cover has four holes, two holes are corresponded withthe first chamber of the base and the other two holes are correspondedwith the second chamber of the base and two tubular filters arerespectively connected with two of the holes that are correspondedrespectively with the first and second chambers of the base.
 4. Thesterilizing air filter as claimed in claim 3, wherein the sterilizingair filter has three bent tubes are respectively named first bent tube,second bent tube and third bent tube; the first bent tube has a proximalend and a distal end and the proximal end of the first bent tube isconnected with the connecting tube that has the tubular filter mountedcorresponding to the first chamber of the base and the distal end of thefirst bent tube is mounted corresponding to the inlet in the casing; thesecond bent tube has a proximal end and a distal end and the proximalend of the second bent tube is connected with the connecting tubewithout a tubular filter mounted corresponding to the first chamber andthe distal end of the second bent tube is connected with the connectingtube that has the tubular filter mounted corresponding to the secondchamber; and the third bent tube has a proximal end and a distal end andthe proximal end of the third bent tube is connected with the connectingtube without a tubular filter mounted corresponding to the secondchamber and the distal end of the third bent tube is mountedcorresponding to the outlet in the casing.
 5. The sterilizing air filteras claimed in claim 4, wherein each spray device further comprises aspray head mounted on the flat filter and connected with the top of theelectric pump.
 6. The sterilizing air filter as claimed in claim 5,wherein the cover further comprises multiple setting tubes formedintegrally with and extended downward from the plate and the peripheriesof the holes and the tubular filters are respectively mounted around thesetting tubes.
 7. The sterilizing air filter as claimed in claim 6,wherein the casing further comprises an opening formed in the sidewalland a plate covers the opening.